package com.atguigu.springcloud.alibaba.controller;

import com.alibaba.csp.sentinel.annotation.SentinelResource;
import com.alibaba.csp.sentinel.slots.block.BlockException;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.concurrent.TimeUnit;

@RestController
@Slf4j
public class FlowLimitController {

    @GetMapping("/testA")
    public String testA(){
        // 测试 直接 -> 阈值类型 线程
//        try {
//            // 暂停毫秒
//            TimeUnit.MILLISECONDS.sleep(800);
//        }catch (InterruptedException e){
//            e.printStackTrace();
//        }
        return "--------testA";
    }

    @GetMapping("/testB")
    public String testB(){
        log.info(Thread.currentThread().getName() + "\t " + "...testB");
        return "--------testB";
    }

    @GetMapping("/testC")
    public String testC(){
        log.info("---testC--测试异常比例");
        int age = 10/0;
        return "--------testC";
    }

    @GetMapping("/testD")
    public String testD(){
        try {
            // 暂停毫秒
            TimeUnit.SECONDS.sleep(1);
        }catch (InterruptedException e){
            e.printStackTrace();
        }
        log.info("testD 测试RT");
        return "--------testD";
    }

    @GetMapping("/testE")
    public String testE(){
        log.info("---testE--测试异常数");
        int age = 10/0;
        return "--------testE";
    }


    /** ------------ 热点限流 ----------*/
    // blockHandler 只管控制台的错误，10/0是java运行时异常不管
    @GetMapping("/testHotKey")
    @SentinelResource(value = "testHotKey",blockHandler = "deal_testHotKey")
    public String testHotKey(@RequestParam(value = "p1",required = false)String p1,@RequestParam(value = "p2",required = false)String p2){
//        int age = 10/0;
        return "-----testHotKey";
    }
    //兜底的方法
    public String deal_testHotKey(String p1, String p2, BlockException exception){
        return "------deal_testHotKey,/(ㄒoㄒ)/~~"; //sentinel系统默认的提示：Blocked by sentinel(flow limiting)
    }
}
